CVE-2025-66017 (GCVE-0-2025-66017)
Vulnerability from cvelistv5 – Published: 2025-11-25 19:59 – Updated: 2025-11-25 20:48
VLAI
EPSS
VEX
Title
CGGMP21 presignatures can be used in the way that significantly reduces security
Summary
CGGMP24 is a state-of-art ECDSA TSS protocol that supports 1-round signing (requires 3 preprocessing rounds), identifiable abort, and a key refresh protocol. In versions 0.6.3 and prior of cggmp21 and version 0.7.0-alpha.1 of cggmp24, presignatures can be used in the way that significantly reduces security. cggmp24 version 0.7.0-alpha.2 release contains API changes that make it impossible to use presignatures in contexts in which it reduces security.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-11-25 20:43 UTC
CWE
- CWE-327 - Use of a Broken or Risky Cryptographic Algorithm
Assigner
GitHub_M
CNA
References
2 references
| URL | Tags |
|---|---|
| https://github.com/LFDT-Lockness/cggmp21/security… | x_refsource_CONFIRM |
| https://www.dfns.co/article/cggmp21-vulnerabiliti… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| LFDT-Lockness | cggmp21 |
Affected:
cggmp21 <= 0.6.3
Affected: cggmp24 = 0.7.0-alpha.1 |
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